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Custom Arch Linux live USB
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| #!/bin/bash | |
| set -e -u | |
| iso_name=archlinux | |
| iso_label="ARCH_$(date +%Y%m)" | |
| iso_version=$(date +%Y.%m.%d) | |
| install_dir=arch | |
| work_dir=work | |
| out_dir=out | |
| gpg_key= | |
| interactive=0 | |
| arch=$(uname -m) | |
| verbose="" | |
| script_path=$(readlink -f ${0%/*}) | |
| disableAuto="" | |
| _usage () | |
| { | |
| echo "usage ${0} [options]" | |
| echo | |
| echo " General options:" | |
| echo " -N <iso_name> Set an iso filename (prefix)" | |
| echo " Default: ${iso_name}" | |
| echo " -V <iso_version> Set an iso version (in filename)" | |
| echo " Default: ${iso_version}" | |
| echo " -L <iso_label> Set an iso label (disk label)" | |
| echo " Default: ${iso_label}" | |
| echo " -D <install_dir> Set an install_dir (directory inside iso)" | |
| echo " Default: ${install_dir}" | |
| echo " -w <work_dir> Set the working directory" | |
| echo " Default: ${work_dir}" | |
| echo " -o <out_dir> Set the output directory" | |
| echo " Default: ${out_dir}" | |
| echo " -i Disables the default auto yes behaviour " | |
| echo " when installing packages via pacman. " | |
| echo " useful if you need to specify y/n." | |
| echo " -v Enable verbose output" | |
| echo " -h This help message" | |
| exit ${1} | |
| } | |
| # Helper function to run make_*() only one time per architecture. | |
| run_once() { | |
| if [[ ! -e ${work_dir}/build.${1}_${arch} ]]; then | |
| $1 | |
| touch ${work_dir}/build.${1}_${arch} | |
| fi | |
| } | |
| # Setup custom pacman.conf with current cache directories. | |
| make_pacman_conf() { | |
| local _cache_dirs | |
| _cache_dirs=($(pacman -v 2>&1 | grep '^Cache Dirs:' | sed 's/Cache Dirs:\s*//g')) | |
| sed -r "s|^#?\\s*CacheDir.+|CacheDir = $(echo -n ${_cache_dirs[@]})|g" ${script_path}/pacman.conf > ${work_dir}/pacman.conf | |
| } | |
| # Base installation, plus needed packages (airootfs) | |
| make_basefs() { | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}/${arch}" -C "${work_dir}/pacman.conf" -D "${install_dir}" init | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}/${arch}" -C "${work_dir}/pacman.conf" -D "${install_dir}" -p "haveged intel-ucode memtest86+ mkinitcpio-nfs-utils nbd zsh" install | |
| } | |
| # Additional packages (airootfs) | |
| make_packages() { | |
| export interactive | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}/${arch}" -C "${work_dir}/pacman.conf" -D "${install_dir}" -p "$(grep -h -v ^# ${script_path}/packages.{both,${arch}})" install | |
| } | |
| # Needed packages for x86_64 EFI boot | |
| make_packages_efi() { | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}/${arch}" -C "${work_dir}/pacman.conf" -D "${install_dir}" -p "efitools" install | |
| } | |
| # Copy mkinitcpio archiso hooks and build initramfs (airootfs) | |
| make_setup_mkinitcpio() { | |
| local _hook | |
| mkdir -p ${work_dir}/${arch}/airootfs/etc/initcpio/hooks | |
| mkdir -p ${work_dir}/${arch}/airootfs/etc/initcpio/install | |
| for _hook in archiso archiso_shutdown archiso_pxe_common archiso_pxe_nbd archiso_pxe_http archiso_pxe_nfs archiso_loop_mnt; do | |
| cp /usr/lib/initcpio/hooks/${_hook} ${work_dir}/${arch}/airootfs/etc/initcpio/hooks | |
| cp /usr/lib/initcpio/install/${_hook} ${work_dir}/${arch}/airootfs/etc/initcpio/install | |
| done | |
| sed -i "s|/usr/lib/initcpio/|/etc/initcpio/|g" ${work_dir}/${arch}/airootfs/etc/initcpio/install/archiso_shutdown | |
| cp /usr/lib/initcpio/install/archiso_kms ${work_dir}/${arch}/airootfs/etc/initcpio/install | |
| cp /usr/lib/initcpio/archiso_shutdown ${work_dir}/${arch}/airootfs/etc/initcpio | |
| cp ${script_path}/mkinitcpio.conf ${work_dir}/${arch}/airootfs/etc/mkinitcpio-archiso.conf | |
| gnupg_fd= | |
| if [[ ${gpg_key} ]]; then | |
| gpg --export ${gpg_key} >${work_dir}/gpgkey | |
| exec 17<>${work_dir}/gpgkey | |
| fi | |
| ARCHISO_GNUPG_FD=${gpg_key:+17} setarch ${arch} mkarchiso ${verbose} -w "${work_dir}/${arch}" -C "${work_dir}/pacman.conf" -D "${install_dir}" -r 'mkinitcpio -c /etc/mkinitcpio-archiso.conf -k /boot/vmlinuz-linux -g /boot/archiso.img' run | |
| if [[ ${gpg_key} ]]; then | |
| exec 17<&- | |
| fi | |
| } | |
| # Customize installation (airootfs) | |
| make_customize_airootfs() { | |
| cp -af ${script_path}/airootfs ${work_dir}/${arch} | |
| curl -o ${work_dir}/${arch}/airootfs/etc/pacman.d/mirrorlist 'https://www.archlinux.org/mirrorlist/?country=all&protocol=http&use_mirror_status=on' | |
| lynx -dump -nolist 'https://wiki.archlinux.org/index.php/Installation_Guide?action=render' >> ${work_dir}/${arch}/airootfs/root/install.txt | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}/${arch}" -C "${work_dir}/pacman.conf" -D "${install_dir}" -r '/root/customize_airootfs.sh' run | |
| rm ${work_dir}/${arch}/airootfs/root/customize_airootfs.sh | |
| } | |
| # Prepare kernel/initramfs ${install_dir}/boot/ | |
| make_boot() { | |
| mkdir -p ${work_dir}/iso/${install_dir}/boot/${arch} | |
| cp ${work_dir}/${arch}/airootfs/boot/archiso.img ${work_dir}/iso/${install_dir}/boot/${arch}/archiso.img | |
| cp ${work_dir}/${arch}/airootfs/boot/vmlinuz-linux ${work_dir}/iso/${install_dir}/boot/${arch}/vmlinuz | |
| } | |
| # Add other aditional/extra files to ${install_dir}/boot/ | |
| make_boot_extra() { | |
| cp ${work_dir}/${arch}/airootfs/boot/memtest86+/memtest.bin ${work_dir}/iso/${install_dir}/boot/memtest | |
| cp ${work_dir}/${arch}/airootfs/usr/share/licenses/common/GPL2/license.txt ${work_dir}/iso/${install_dir}/boot/memtest.COPYING | |
| cp ${work_dir}/${arch}/airootfs/boot/intel-ucode.img ${work_dir}/iso/${install_dir}/boot/intel_ucode.img | |
| cp ${work_dir}/${arch}/airootfs/usr/share/licenses/intel-ucode/LICENSE ${work_dir}/iso/${install_dir}/boot/intel_ucode.LICENSE | |
| } | |
| # Prepare /${install_dir}/boot/syslinux | |
| make_syslinux() { | |
| mkdir -p ${work_dir}/iso/${install_dir}/boot/syslinux | |
| for _cfg in ${script_path}/syslinux/*.cfg; do | |
| sed "s|%ARCHISO_LABEL%|${iso_label}|g; | |
| s|%INSTALL_DIR%|${install_dir}|g" ${_cfg} > ${work_dir}/iso/${install_dir}/boot/syslinux/${_cfg##*/} | |
| done | |
| cp ${script_path}/syslinux/splash.png ${work_dir}/iso/${install_dir}/boot/syslinux | |
| cp ${work_dir}/${arch}/airootfs/usr/lib/syslinux/bios/*.c32 ${work_dir}/iso/${install_dir}/boot/syslinux | |
| cp ${work_dir}/${arch}/airootfs/usr/lib/syslinux/bios/lpxelinux.0 ${work_dir}/iso/${install_dir}/boot/syslinux | |
| cp ${work_dir}/${arch}/airootfs/usr/lib/syslinux/bios/memdisk ${work_dir}/iso/${install_dir}/boot/syslinux | |
| mkdir -p ${work_dir}/iso/${install_dir}/boot/syslinux/hdt | |
| gzip -c -9 ${work_dir}/${arch}/airootfs/usr/share/hwdata/pci.ids > ${work_dir}/iso/${install_dir}/boot/syslinux/hdt/pciids.gz | |
| gzip -c -9 ${work_dir}/${arch}/airootfs/usr/lib/modules/*-ARCH/modules.alias > ${work_dir}/iso/${install_dir}/boot/syslinux/hdt/modalias.gz | |
| } | |
| # Prepare /isolinux | |
| make_isolinux() { | |
| mkdir -p ${work_dir}/iso/isolinux | |
| sed "s|%INSTALL_DIR%|${install_dir}|g" ${script_path}/isolinux/isolinux.cfg > ${work_dir}/iso/isolinux/isolinux.cfg | |
| cp ${work_dir}/${arch}/airootfs/usr/lib/syslinux/bios/isolinux.bin ${work_dir}/iso/isolinux/ | |
| cp ${work_dir}/${arch}/airootfs/usr/lib/syslinux/bios/isohdpfx.bin ${work_dir}/iso/isolinux/ | |
| cp ${work_dir}/${arch}/airootfs/usr/lib/syslinux/bios/ldlinux.c32 ${work_dir}/iso/isolinux/ | |
| } | |
| # Prepare /EFI | |
| make_efi() { | |
| mkdir -p ${work_dir}/iso/EFI/boot | |
| cp ${work_dir}/x86_64/airootfs/usr/share/efitools/efi/PreLoader.efi ${work_dir}/iso/EFI/boot/bootx64.efi | |
| cp ${work_dir}/x86_64/airootfs/usr/share/efitools/efi/HashTool.efi ${work_dir}/iso/EFI/boot/ | |
| cp ${work_dir}/x86_64/airootfs/usr/lib/systemd/boot/efi/systemd-bootx64.efi ${work_dir}/iso/EFI/boot/loader.efi | |
| mkdir -p ${work_dir}/iso/loader/entries | |
| cp ${script_path}/efiboot/loader/loader.conf ${work_dir}/iso/loader/ | |
| cp ${script_path}/efiboot/loader/entries/uefi-shell-v2-x86_64.conf ${work_dir}/iso/loader/entries/ | |
| cp ${script_path}/efiboot/loader/entries/uefi-shell-v1-x86_64.conf ${work_dir}/iso/loader/entries/ | |
| sed "s|%ARCHISO_LABEL%|${iso_label}|g; | |
| s|%INSTALL_DIR%|${install_dir}|g" \ | |
| ${script_path}/efiboot/loader/entries/archiso-x86_64-usb.conf > ${work_dir}/iso/loader/entries/archiso-x86_64.conf | |
| # EFI Shell 2.0 for UEFI 2.3+ | |
| curl -o ${work_dir}/iso/EFI/shellx64_v2.efi https://raw.githubusercontent.com/tianocore/edk2/master/ShellBinPkg/UefiShell/X64/Shell.efi | |
| # EFI Shell 1.0 for non UEFI 2.3+ | |
| curl -o ${work_dir}/iso/EFI/shellx64_v1.efi https://raw.githubusercontent.com/tianocore/edk2/master/EdkShellBinPkg/FullShell/X64/Shell_Full.efi | |
| } | |
| # Prepare efiboot.img::/EFI for "El Torito" EFI boot mode | |
| make_efiboot() { | |
| mkdir -p ${work_dir}/iso/EFI/archiso | |
| truncate -s 64M ${work_dir}/iso/EFI/archiso/efiboot.img | |
| mkfs.fat -n ARCHISO_EFI ${work_dir}/iso/EFI/archiso/efiboot.img | |
| mkdir -p ${work_dir}/efiboot | |
| mount ${work_dir}/iso/EFI/archiso/efiboot.img ${work_dir}/efiboot | |
| mkdir -p ${work_dir}/efiboot/EFI/archiso | |
| cp ${work_dir}/iso/${install_dir}/boot/x86_64/vmlinuz ${work_dir}/efiboot/EFI/archiso/vmlinuz.efi | |
| cp ${work_dir}/iso/${install_dir}/boot/x86_64/archiso.img ${work_dir}/efiboot/EFI/archiso/archiso.img | |
| cp ${work_dir}/iso/${install_dir}/boot/intel_ucode.img ${work_dir}/efiboot/EFI/archiso/intel_ucode.img | |
| mkdir -p ${work_dir}/efiboot/EFI/boot | |
| cp ${work_dir}/x86_64/airootfs/usr/share/efitools/efi/PreLoader.efi ${work_dir}/efiboot/EFI/boot/bootx64.efi | |
| cp ${work_dir}/x86_64/airootfs/usr/share/efitools/efi/HashTool.efi ${work_dir}/efiboot/EFI/boot/ | |
| cp ${work_dir}/x86_64/airootfs/usr/lib/systemd/boot/efi/systemd-bootx64.efi ${work_dir}/efiboot/EFI/boot/loader.efi | |
| mkdir -p ${work_dir}/efiboot/loader/entries | |
| cp ${script_path}/efiboot/loader/loader.conf ${work_dir}/efiboot/loader/ | |
| cp ${script_path}/efiboot/loader/entries/uefi-shell-v2-x86_64.conf ${work_dir}/efiboot/loader/entries/ | |
| cp ${script_path}/efiboot/loader/entries/uefi-shell-v1-x86_64.conf ${work_dir}/efiboot/loader/entries/ | |
| sed "s|%ARCHISO_LABEL%|${iso_label}|g; | |
| s|%INSTALL_DIR%|${install_dir}|g" \ | |
| ${script_path}/efiboot/loader/entries/archiso-x86_64-cd.conf > ${work_dir}/efiboot/loader/entries/archiso-x86_64.conf | |
| cp ${work_dir}/iso/EFI/shellx64_v2.efi ${work_dir}/efiboot/EFI/ | |
| cp ${work_dir}/iso/EFI/shellx64_v1.efi ${work_dir}/efiboot/EFI/ | |
| umount -d ${work_dir}/efiboot | |
| } | |
| # Build airootfs filesystem image | |
| make_prepare() { | |
| cp -a -l -f ${work_dir}/${arch}/airootfs ${work_dir} | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" pkglist | |
| setarch ${arch} mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" ${gpg_key:+-g ${gpg_key}} prepare | |
| rm -rf ${work_dir}/airootfs | |
| # rm -rf ${work_dir}/${arch}/airootfs (if low space, this helps) | |
| } | |
| # Build ISO | |
| make_iso() { | |
| if [[ $skipAuto = 'yes' ]]; then | |
| mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" -L "${iso_label}" -o "${out_dir}" iso "${iso_name}-${iso_version}-x86_64.iso" | |
| else | |
| mkarchiso ${verbose} -w "${work_dir}" -D "${install_dir}" -L "${iso_label}" -o "${out_dir}" iso "${iso_name}-${iso_version}-x86_64.iso" | |
| fi | |
| } | |
| if [[ ${EUID} -ne 0 ]]; then | |
| echo "This script must be run as root." | |
| _usage 1 | |
| fi | |
| if [[ ${arch} != x86_64 ]]; then | |
| echo "This script needs to be run on x86_64" | |
| _usage 1 | |
| fi | |
| while getopts 'N:V:L:D:w:o:g:ivh' arg; do | |
| case "${arg}" in | |
| N) iso_name="${OPTARG}" ;; | |
| V) iso_version="${OPTARG}" ;; | |
| L) iso_label="${OPTARG}" ;; | |
| D) install_dir="${OPTARG}" ;; | |
| w) work_dir="${OPTARG}" ;; | |
| o) out_dir="${OPTARG}" ;; | |
| g) gpg_key="${OPTARG}" ;; | |
| i) interactive=1 ;; | |
| v) verbose="-v" ;; | |
| h) _usage 0 ;; | |
| *) | |
| echo "Invalid argument '${arg}'" | |
| _usage 1 | |
| ;; | |
| esac | |
| done | |
| mkdir -p ${work_dir} | |
| run_once make_pacman_conf | |
| # Do all stuff for each airootfs | |
| for arch in x86_64; do | |
| run_once make_basefs | |
| run_once make_packages | |
| done | |
| run_once make_packages_efi | |
| for arch in x86_64; do | |
| run_once make_setup_mkinitcpio | |
| run_once make_customize_airootfs | |
| done | |
| for arch in x86_64; do | |
| run_once make_boot | |
| done | |
| # Do all stuff for "iso" | |
| run_once make_boot_extra | |
| run_once make_syslinux | |
| run_once make_isolinux | |
| run_once make_efi | |
| run_once make_efiboot | |
| for arch in x86_64; do | |
| run_once make_prepare | |
| done | |
| run_once make_iso |
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Added -i flag to enable interactive mode when installing packages via pacstrap. Useful if you have package conflicts and would like to specify what to do for each one.